Question

我在主屏幕中添加了一个UIBarButtonItem，并为其创建了 b.xib，b.h和b.m 文件。当我点击按钮时，它应该打开尊重的屏幕，但它不会打开并打开空白屏幕。

我是iOS编程的新手....

下面是A.m文件中的代码，我在其中添加了按钮，点击它时应该会打开b.xib。

UIBarButtonItem *bButton = [[UIBarButtonItem alloc]
                               initWithTitle:@"B"
                               style:UIBarButtonItemStyleBordered
                               target:self
                               action:@selector(openB:)];
self.navigationItem.leftBarButtonItem = bButton;
bButton.TintColor = [UIColor colorWithRed:0.0 green:0.31 blue:0.56 alpha:1.0];
[bButton release];

- (void)openB:(id)sender {
BViewController *b = [[BViewController alloc] init];
// ttod.defViewC = self; //Bookmarks from the definition view
[self presentModalViewController:b animated:YES];
[b release];
}

任何想法......我怎样才能让它完美运作......

Answer 1

BViewController *b = [[BViewController alloc] init];

如果为ViewController创建一个nib，则应改为使用initWithNibName:bundle:。

Answer 2

试试这个：

<强> XIBs

BViewController *bViewController = [[BViewController alloc] initWithNibName:@"Myview" bundle:nil];

[self.view.window.rootViewController presentViewController: bViewController 
                                                      animated: YES 
                                                    completion: nil];

<强>故事板

// Here BViewController should be the name in storyboard scene then,  
BViewController *bViewController  = [[UIStoryboard storyboardWithName:@"Main" bundle:nil] instantiateViewControllerWithIdentifier:@"BViewController"]

[self.view.window.rootViewController presentViewController: bViewController 
                                                      animated: YES 
                                                    completion: nil];

希望这会有所帮助。

注意：尝试为视图控制器提供一些有意义的名称，而不是使用 AViewController 和 BViewController

Answer 3

您必须在显示此类视图时指定您的笔尖名称

BViewController *b = [[BViewController alloc] initWithNibName:@"your_nib_name" bundle:nil];
[self presentModalViewController:b animated:YES];

在iOS中单击按钮时显示空白屏幕

3 个答案: